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Mercury at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Mercury
Symbol: Hg
Atomic Number: 80
Atomic Mass: 200.59 amu
Melting Point: -38.87 °C (234.28 K, -37.966 °F)
Boiling Point: 356.58 °C (629.73 K, 673.844 °F)
Number of Protons/Electrons: 80
Number of Neutrons: 121
Classification: Transition Metal
Crystal Structure: Rhombohedral
Density @ 293 K: 13.456 g/cm3
Color: Silver

Atomic Structure

[Bohr Model of Mercury]  
Number of Energy Levels: 6

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 18
    Sixth Energy Level: 2


Isotope Half Life
Hg-194520.0 years
Hg-1972.7 days
Hg-197m23.8 hours
Hg-20346.6 days
Hg-2068.2 minutes


Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: After the planet Mercury
Symbol Origin: From the Latin word hydrargyrum (liquid silver)
Uses: thermometers, barometers, fluorescent lamps, batteries
Obtained From: cinnabar ore

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